关于四氟化钛处理对覆盖有薄膜的牙釉质抗盐酸侵蚀作用的体外研究。
An in vitro study on the effect of TiF(4) treatment against erosion by hydrochloric acid on pellicle-covered enamel.
作者信息
Hove L H, Young A, Tveit A B
机构信息
Faculty of Dentistry, University of Oslo, Oslo, Norway.
出版信息
Caries Res. 2007;41(1):80-4. doi: 10.1159/000096111.
The aim of this in vitro study was to examine the effect of fluoride treatment on pellicle-covered enamel exposed to an acidic challenge simulating gastric reflux. Sixteen bovine and 16 human teeth were sectioned into four pieces, divided into four groups: (1) control, (2) 2-hour pellicle, (3) TiF(4), and (4) 2-hour pellicle + TiF(4), and subsequently subjected to 3 ml 0.01 M HCl stepwise for 4 + 4 + 4 min. The acid was analysed for calcium by atomic absorption spectroscopy. TiF(4) reduced Ca release from enamel by 76, 57 and 56% following the 4 + 4 + 4-min acid exposures, respectively, in bovine and 44, 54 and 54% in human enamel. These results suggest that treatment of enamel with a TiF(4) solution, with or without pellicle removal, may provide protection for the enamel against acid attack.
本体外研究的目的是检测氟化物处理对模拟胃反流酸性刺激下覆盖有获得性膜的牙釉质的影响。将16颗牛牙和16颗人牙切成四片，分为四组：（1）对照组，（2）2小时获得性膜组，（3）四氟化钛组，（4）2小时获得性膜 + 四氟化钛组，随后依次用3 ml 0.01 M盐酸处理4 + 4 + 4分钟。通过原子吸收光谱法分析酸中的钙含量。在牛牙釉质中，经过4 + 4 + 4分钟的酸暴露后，四氟化钛分别使牙釉质的钙释放减少了76%、57%和56%，在人牙釉质中分别减少了44%、54%和54%。这些结果表明，用四氟化钛溶液处理牙釉质，无论是否去除获得性膜，都可能为牙釉质提供抗酸侵蚀的保护作用。
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